Online shopping can be done virtually from anywhere and at any time of the day, and buyers can open several browser windows or tabs to compare prices or jewelry pieces on offer by different online retailers.
Since they do not need to pay for a storefront, online sellers are able to offer relatively cheap diamonds in comparison. Besides, having an online space means that they can carry a relatively bigger diamond collection than what is possible at a physical store because of the limited shelf space.
Some retailers offer advantages like lifelong repair or replacement warranty provided that stipulated conditions are met, such as when the defect or damage has occurred during the product making phase. Anyway, you need to ensure that the seller you are buying from is a credible one and provides relevant gemological certificates for the diamond jewelry.